What does flexible working look like for you?

If I feel I need a day off today, I don't have to say I'm sick or smth:)

Having full control of when, where, and how I work. Any constraints on any of these fronts would ruin flexibility to me.

Flexible work means working out the required hours at any time of the day.

I'd say flexible goes a lot with async as that allows each person to work at the best moment for them. And for async work, I feel an efficient organisational tool is needed to each team member knows precisely what's expected of them. Feels like a lot of the flexible work policies struggle to give clear goals to teams so they always end up reverting to sync. WDYT?